Navigation Links
Nanoparticles improve solar collection efficiency
Date:4/5/2011

Washington, D.C. (April 5, 2011) -- Using minute graphite particles 1000 times smaller than the width of a human hair, mechanical engineers at Arizona State University hope to boost the efficiencyand profitabilityof solar power plants.

Photovoltaic (PV) solar panels are popping up more and more on rooftops, but they're not necessarily the best solar power solution. "The big limitation of PV panels is that they can use only a fraction of the sunlight that hits them, and the rest just turns into heat, which actually hurts the performance of the panels," explains Robert Taylor, a graduate student in mechanical engineering at Arizona State University.

An alternative that can make use of all of the sunlight, including light PVs can't use, is the solar thermal collector. The purpose of these collectorswhich take the form of dishes, panels, evacuated tubes, towers, and moreis to collect heat that can then be used to boil water to make steam, for example, which drives a turbine to create electricity.

To further increase the efficiency of solar collectors, Taylor and his colleagues have mixed nanoparticlesparticles a billionth of a meter in sizeinto the heat-transfer oils normally used in solar thermal power plants. The researchers chose graphite nanoparticles, in part because they are black and therefore absorb light very well, making them efficient heat collectors. In laboratory tests with small dish collectors, Taylor and his colleagues found that nanoparticles increased heat-collection efficiency by up to 10 percent. "We estimate that this could mean up to $3.5 million dollars per year more revenue for a 100 megawatt solar power plant," he says.

What's more, Taylor adds, graphite nanoparticles "are cheap"less than $1 per grambut with 100 grams of nanoparticles providing the same heat-collecting surface area as an entire football field. "It might also be possible to filter out nanoparticles of soot, which have similar absorbing potential, from coal power plants for use in solar systems," he says. "I think that idea is particularly attractive: using a pollutant to harvest clean, green solar energy."


'/>"/>

Contact: Charles E. Blue
cblue@aip.org
301-209-3091
American Institute of Physics
Source:Eurekalert

Related biology technology :

1. New instrument keeps an eye on nanoparticles
2. Special sugar, nanoparticles combine to detect cholera toxin
3. Targeted Gold Nanoparticles and Noninvasive Radio Fields Attacking One of the Deadliest and Least Curable Types of Cancer: Pancreatic Carcinoma
4. Tecnalia investigates nanoparticles for soil remediation
5. Scientist chronicle nanoparticles journey from the lungs into the body
6. Trouble with sputter? Blame giant nanoparticles
7. Gold nanoparticles enrich everyday products
8. Magnetic fields drive drug-loaded nanoparticles to reduce blood vessel blockages in an animal study
9. Study shows that size affects structure of hollow nanoparticles
10. Engineers produce how-to guide for controlling the structure of nanoparticles
11. New discovery reveals fate of nanoparticles in human cells
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/8/2016)... DIEGO, Dec. 8, 2016  OncoSec Medical Incorporated ... developing DNA-based intratumoral cancer immunotherapies, today announced financial ... "We are delivering on our commitment ... with ImmunoPulse┬« IL-12. We are pleased with the ... combination trial, and we are focused on advancing ...
(Date:12/8/2016)... , Dec. 8, 2016 Eurofins announces the appointment of ... President of Eurofins Scientific Inc. (ESI). Mr. Murray ... proven professional and entrepreneurial experience in leading international business teams. As ... food testing market to uphold Eurofins, status as the global leader ... , ...
(Date:12/8/2016)... 8, 2016  Anaconda BioMed S.L., a pre-clinical stage ... next generation neuro-thrombectomy system for the treatment of Acute ... Jovin, MD to join its Scientific Advisory Board (SAB). ... network of scientific and clinical experts to Anaconda BioMed ... ANCD BRAIN ┬« to its clinical phase. The ...
(Date:12/8/2016)... N.J. , Dec. 8, 2016  Soligenix, ... late-stage biopharmaceutical company focused on developing and commercializing ... an unmet medical need, announced today the long-term ... with SGX942 (dusquetide), a first-in-class Innate Defense Regulator ... in head and neck cancer patients undergoing chemoradiation ...
Breaking Biology Technology:
(Date:11/17/2016)... Global Market Watch: Primarily supported by ... Banks and Academics) market is to witness a value of ... the highest Compounded Annual Growth Rate (CAGR) of 10.75% is ... analysis period 2014-2020. North America is ... Europe at 9.56% respectively. Report ...
(Date:11/14/2016)... Technology, Inc. ("xG" or the "Company") (Nasdaq: XGTI, XGTIW), ... in challenging operating environments, announced its results for the ... a conference call to discuss these results on November ... Key Recent Accomplishments ... acquire Vislink Communication Systems. The purchase is expected to ...
(Date:6/22/2016)... -- On Monday, the Department of Homeland Security (DHS) ... for the Biometric Exit Program. The Request for Information ... explains that CBP intends to add biometrics to confirm ... States , in order to deter visa overstays, ... Logo - http://photos.prnewswire.com/prnh/20160622/382209LOGO ...
Breaking Biology News(10 mins):